/*
 * @Author: Starfish_DL
 * @Date: 2020-10-16 15:58:01
 * @LastEditors: Starfish_DL
 * @LastEditTime: 2020-10-16 16:01:46
 * @CurrentVersion: 1.0
 * @Description: 
 */

public class Sub extends Super {
    /**
     * @author: Starfish_DL
     * @description: main函数形参那里少了括号，大小写部分，中英文引号不分
     * @param {type} 
     * @return {type} 
     */
    public int getLength() { return 5;}
    public static void main(String args[]){
    Super sooper = new Super();
    Sub  sub = new Sub();
    System.out.println(sooper.getLength() + "," + sub.getLength());
    }
}

class Super {
    public int getLength() { return 4;}
}